"SPEX CERTIPREP LLC"

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Acrolein Single-Component Organic Standards, SPEX CertiPrep

Supplier: SPEX CERTIPREP LLC

Single-Component organic standards.

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Assurance® Grade Silver Standards for AA and ICP, SPEX CertiPrep

Supplier: SPEX CERTIPREP LLC

Single-element standards for AA & ICP.

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Lead Single-Element Organometallic Oil Standard for AA and ICP, SPEX CertiPrep

Supplier: SPEX CERTIPREP LLC

Organometallic single-element oil standards are guaranteed stable and accurate, together with a wide range of applications and features:

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1,3,5-Trichlorobenzene Single-Component Organic Standard, SPEX CertiPrep

Supplier: SPEX CERTIPREP LLC

Single-Component organic standards.

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Claritas PPT® Grade Mercury Standards for ICP-MS, SPEX CertiPrep

Supplier: SPEX CERTIPREP LLC

Single element standards for ICP-MS.

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Method C1001-09.4 Phthalates, SPEX CertiPrep

Supplier: SPEX CERTIPREP LLC

Consumer safety standards, phthalates in polyvinyl chloride (PVC) QC standards.

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Assurance® Grade Mixed Calibration Standard 1 for AA and ICP, SPEX CertiPrep

Supplier: SPEX CERTIPREP LLC

Assurance® mixed multi-element standards for AA & ICP.

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Assurance® Grade Alternate Metals III for AA & ICP, SPEX CertiPrep

Supplier: SPEX CERTIPREP LLC

Assurance® mixed multi-element standards for AA & ICP. Groundwater and wastewater pollution control check standards.

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Ethanol Analytical Standard for Wine, SPEX CertiPrep

Supplier: SPEX CERTIPREP LLC

Consumer Safety Standards
Analytical Standards for Wine

Wine is a complex combination of water, alcohol and other substances such as organic acids, phenols, sugars, carbon dioxide, and sulfur dioxide. The chemical interactions of these compounds, combined with the aging process, determine the quality of the color, taste and aroma of the wine. However, during this process, the chemical interactions can also play key roles in spoiling the wine. For instance, cork taint transpires when naturally occurring airborne fungi are in the presence of chlorophenol compounds to form 2,4,6-trichloranisole (TCA) in the wine. When this occurs, the wine’s aroma is reduced significantly and is replaced by an undesirable smell and taste.

To help regulate the spoilage of wine, the wine industry tests for several compounds that are known to cause this. For this industry, SPEX CertiPrep offers Certified Reference Materials (CRMs) for wine that are designed for GC, GC/MS, HPLC and LC/MS analysis. These standards are manufactured from the highest purity starting materials and the highest grade of solvents available in order to guarantee superior quality. Each standard is supplied with a detailed comprehensive Certificate of Analysis.